For example, plasma membrane proteins carry out functions as diverse as ferrying nutrients across the plasma membrane, receiving chemical signals from outside the cell, translating chemical signals into intracellular action, and sometimes anchoring the cell in a particular location (Figure 4).nzymes are another type of protein, and these molecules catalyze the biochemical reactions that occur in cells. Yet other proteins work as monitors, changing their shape and activity in response to metabolic signals or messages from outside the cell.
Brown served as a mentor on Season 8 of The Next Food Network Star alongside Bobby Flay and Giada De Laurentiis. During season 8, each mentor selected and mentored a team of five finalists. Team Alton's finalist Justin Warner was the season 8 winner; however, Brown will not be producing Warner's show.
For the Australian rules footballer, see Campbell Brown (footballer). Alma Dale Campbell Brown (born June 14, 1968) is an American television news reporter and anchorwoman. She served as co-anchor of the NBC news program Weekend Today from 2003 to 2007, then hosted the series Campbell Brown on CNN from 2008 to 2010. Brown won an Emmy Award as part of the NBC team reporting on Hurricane Katrina. Since 2013 she has served as an education reform and school choice activist.